Title Authors Year
Nitrogen and phosphorus concentrations and N:P ratios in Norwegian lakes. Perspective on nutrient limitation

Faafeng, B…

1993
The decrease of rich fen Bryophytes in the Netherlands.

Kooijman, A…

1992
Influence of Ozone Air-Pollution on Plant-Herbivore Interactions .2. Effects of Ozone on Feeding Preference, Growth and Consumption Rates of Monarch Butterflies (Danaus-Plexippus)

Bolsinger,…

1992
The Effects of Low Ph and Aluminum on Breeding Success in the Frog Rana-Temporaria

Beattie, R.…

1992
Bryophytes and Lichens in a Changing Environment.

Bates, J.W…

1992
Environmental Health Criteria 135 Cadmium - Environmental Aspects

WHO,

 		1992
Effects of simulated nitrogen rich and acid rain on the nitrogen-fixing lichen Peltigera aphthosa (L.) Willd.

Hallbdcken…

1992
Effects of Ionising Radiation on Plants and Animals at levels implied by Current Radiation Protection Standards

IAEA,

 		1992
Lichen Flora of Great Britain and Ireland

Purvis, O.W…

1992
Acid Soil and Acid Rain

Kennedy, I.…

1992